History of Diamond Grading in Australia

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Explore DCLA’s legacy as Australia’s leading diamond authority. Learn our history, meet the founders, and discover our unmatched grading expertise.

Few diamonds capture the imagination quite like a natural Fancy Vivid blue diamond. In 2023, one of the most remarkable examples in recent years the 11.28-carat Infinite Blue attracted worldwide attention when Sotheby’s Hong Kong offered it as a single-lot auction.
The Infinite Blue: The Extraordinary Story Behind a $25 Million Blue Diamond

Rare blue diamond from South Africa’s Cullinan Mine demonstrates why colour, origin and rarity can transform a[…]

The human eye is naturally drawn to contrast.
The Art of Contrast: Why Mixing Coloured Diamonds Creates Extraordinary Jewellery

For centuries, white diamonds have been regarded as the ultimate symbol of elegance and timeless beauty. Today,[…]

A 27.64 carat Fancy Vivid Blue heart shaped diamond
The Heart of Eternity Diamond: The Extraordinary Blue Diamond That Could Redefine Rarity

Among the world’s most exceptional gemstones, few diamonds capture the imagination quite like the Heart of Eternity[…]

The Farnese Blue
The Farnese Blue Diamond: Three Centuries Through Europe’s Royal Courts

The Farnese Blue occupies a rare position among historic natural diamonds. It is not merely a gemstone[…]

The 9.51 carat Mellon Blue Fancy Vivid Blue pear shaped cut diamond
Rare ‘Mellon Blue’ Diamond Fetches $25.5 Million at Christie’s Geneva Market Reflects Shifting Demand for Coloured Diamonds

The legendary Mellon Blue Diamond a 9.51-carat fancy vivid blue, internally flawless gem sold for $25.5 million[…]

No Golconda Blue, but Christie’s still Raises $72m

Christie's Geneva sold 100 per cent of lots at its Magnificent Jewels yesterday (14 May) and raised[…]

Rare 10-Carat Blue Diamond Could Fetch $20 Million at Sotheby’s Geneva Auction

A remarkable 10-carat blue diamond, dubbed the “Mediterranean Blue Diamond,” is expected to achieve up to $20[…]

5.72-ct Blue Diamond Sells for $8.8m

A 5.72 carat fancy intense blue diamond beat its high estimate and sold for $8.8m yesterday (10[…]

Blue and Pink Diamond Ring Fetches $3.7m

Blue and Pink Diamond Ring Fetches $3.7m

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